We potentially have enough materials to build a small coop (I'm limited to 4 chickens by reluctant husband's orders), but I don't know when we'll have time to do it. It would go in a dog kennel and have supervised free range time.

It looks like it might need more ventilation. Am I seeing these dimensions correctly? The description says overall size 48″ wide 31.5″ deep 43″ high, but it looks like the measurements on the pic are 45" wide including nest boxes, 27.5" deep and 43" high.